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12311394 = 232389213
BaseRepresentation
bin101110111101…
…101101100010
3212011111001120
4232331231202
511122431034
61115513110
7206434164
oct56755542
925144046
1012311394
116a49807
124158796
132720964
1418c6934
151132c49
hexbbdb62

12311394 has 16 divisors (see below), whose sum is σ = 25693632. Its totient is φ = 3925328.

The previous prime is 12311389. The next prime is 12311401. The reversal of 12311394 is 49311321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44469 + ... + 44744.

It is an arithmetic number, because the mean of its divisors is an integer number (1605852).

Almost surely, 212311394 is an apocalyptic number.

12311394 is an abundant number, since it is smaller than the sum of its proper divisors (13382238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311394 is a wasteful number, since it uses less digits than its factorization.

12311394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89241.

The product of its digits is 648, while the sum is 24.

The square root of 12311394 is about 3508.7596098907. The cubic root of 12311394 is about 230.9062793289.

The spelling of 12311394 in words is "twelve million, three hundred eleven thousand, three hundred ninety-four".

Divisors: 1 2 3 6 23 46 69 138 89213 178426 267639 535278 2051899 4103798 6155697 12311394